Some of last year's biggest releases have been discounted this weekend, including Splinter Cell: Blacklist for $20 at Steam, Tomb Raider for $9 on Amazon, Assassin's Creed IV: Black Flag for $30 at GameFly, Company of Heroes 2 for $13 at Green Man Gaming (which also includes a free copy of Rome: Total War), as well as BioShock Infinite for $10 at Get Games.